Taking off drums/handbrake checking

[MarkRS]

W plate clio - Going to take the drums apart to check/clean them, any advise, and what do i check for the handbrake working correctly, releasing properly etc.. i saw about adjusting it in another thread.

Sometimes the drums are abit sticky so i got to have a look. Done brakes before but not on the clio.
I know the nut is 30mm? and needs to be replaced each time.

Thanks alot.